The Foundations And Concepts of Islam
Eight: It should call to noble characters and deeds like truthfulness, honesty, modesty, chastity and generosity. It should also prohibit bad conducts like disobedience to parents, killing innocent souls, all kinds of immoralities, lies, injustice, aggression, stinginess and sins.
Nine: It should be able to provide happiness for those who believe in it. Allaah says,
“Taa Haa. We have not sent down the Qur’aan unto you (O Muhammad) to cause you distress.”
It should also be in harmony with upright nature. “(This is) Allaah’s nature upon which He has created mankind.”It must also be in harmony with sound reason, because the true religion is legislated by Allaah and the sound reason is created by Allaah and it is therefore impossible that the Law of Allaah and the creatures of Allaah should contradict each other.
Ten: It should lead to the truth, warn against falsehood, keep people away from error and lead them to the Straight Path where there is no crookedness. Allaah speaks about the jinn that when they heard the Qur’aan being recited, some of them told others, “O our people! Verily! We have heard a Book (the Qur’aan) sent down after Moosaa, confirming what came before it: It guides to the truth and the Straight Path.”
It should not call to what will cause people misery, as Allaah says about the Qur’aan,
“Taa Haa. We have not sent down the Qur’aan unto you to cause you distress.”
The true religion should also not enjoin on people what can cause them destruction. Allaah says,
“And do not kill yourselves. Surely, Allaah is the Most-Merciful to you.”
It should also not distinguish between its adherents on the basis of race, colour or clan. Allaah says,